The SD Specification v9.00 states that A2 cards must meet A1 speeds when CQ+write caching is turned off. That's been the case with my testing - all the A2 cards I've seen exceed A1 with CQ turned off (and some still get significantly higher than the minimums).
Pi 0-3 can't drive UHS-I SD bus speeds (DDR50/SDR50/SDR104) which A1/A2 are qualified for - so yes, you're paying a premium for performance you can't use.
Pi 0-3 can't drive UHS-I SD bus speeds (DDR50/SDR50/SDR104) which A1/A2 are qualified for - so yes, you're paying a premium for performance you can't use.
Statistics: Posted by jdb — Fri Jul 12, 2024 12:33 pm